Microwave-assisted aqueous synthesis of transition metal ions doped ZnSe/ZnS core/shell quantum dots with tunable white-light emission

2015 ◽  
Vol 351 ◽  
pp. 655-661 ◽  
Author(s):  
Jie Zhang ◽  
Qiuhang Chen ◽  
Wanlu Zhang ◽  
Shiliang Mei ◽  
Liangjie He ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Transition Metal ◽  
Metal Ions ◽  
White Light ◽  
Light Emission ◽  
Transition Metal Ions ◽  
White Light Emission ◽  
Core Shell ◽  
Aqueous Synthesis ◽  
Microwave Assisted

Aqueous synthesis of multilayer Mn:ZnSe/Cu:ZnS quantum dots with white light emission

2014 ◽  
Vol 2 (4) ◽  
pp. 660-666 ◽  
Author(s):  
Chunlei Wang ◽  
Shuhong Xu ◽  
Yanbin Wang ◽  
Zhuyuan Wang ◽  
Yiping Cui
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Aqueous Synthesis

scholarly journals Fabrication of a light-emitting device based on the CdS/ZnS spherical quantum dots

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Kobra Hasanirokh ◽  
Asghar Asgari ◽  
Saber Mohammadi
Keyword(s):  
Quantum Dots ◽  
Current Density ◽  
White Light ◽  
Light Emission ◽  
Blue Emission ◽  
White Light Emission ◽  
Core Shell ◽  
Device Structure ◽  
Light Emitting ◽  
Particle Layer

AbstractIn this work, we focus on the colloidal quantum dot based light-emitting diodes (QD-LEDs) performance. First, we synthesize the spherical QDs with a CdS core that covered with a wider band gap II–VI semiconductor acting as a shell (ZnS). In order to synthesize this nano crystal QDs with structure of CdS/ZnS/CdS/ZnS, we use a reverse micelle process. These four-layer quantum well quantum dots (QWQDs) can generate the white light emission. The positional design of different layers i.e., core/shell QD emitters is a critical factor for white emissive devices. The blue emission generated by CdS core mixes with green/orange components originating from ZnS inner shell and creates an efficiency white light emission. Then, we fabricate a white-QDLED with a device structure of FTO/ ZnO / QD / CBP/ MoO3 / Al films. A thin film of CdS/ZnS/CdS/ZnS QDs is deposited by electrostatically assembled colloidal QD solutions. The experimental results show that the emission spectra of QDs and current density through the LED are controlled by varying the particle sizes. The peaks of absorbance and Photoluminescence (PL) spectrums for core/shell structures get the red shifted as the dot size increases. Furthermore, this QD-LED with a smaller nano particle layer has a higher current density.

Zinc quinolate complex decorated CuInS2/ZnS core/shell quantum dots for white light emission

2017 ◽  
Vol 5 (29) ◽  
pp. 7291-7296 ◽  
Author(s):  
Sabyasachi Pramanik ◽  
Satyapriya Bhandari ◽  
Arun Chattopadhyay
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Core Shell ◽  
Light Emitting

Formation of a zinc-quinolate complex on the surface of CuInS2/ZnS core shell quantum dots leading to the fabrication of an advanced white light emitting nanocomposite.

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